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MY124577A - Lead-free optical barium flint glass - Google Patents

Lead-free optical barium flint glass

Info

Publication number
MY124577A
MY124577A MYPI9804007A MY124577A MY 124577 A MY124577 A MY 124577A MY PI9804007 A MYPI9804007 A MY PI9804007A MY 124577 A MY124577 A MY 124577A
Authority
MY
Malaysia
Prior art keywords
lead
free optical
flint glass
barium flint
optical barium
Prior art date
Application number
Inventor
Uwe Dr Kolberg
Alwin Weitzel
Magdalena Winkler-Trudewig
Monika Gierke
Original Assignee
Schott Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schott Ag filed Critical Schott Ag
Publication of MY124577A publication Critical patent/MY124577A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
    • C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
    • C03C3/093—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium containing zinc or zirconium
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
    • C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)

Abstract

THE INVENTION RELATES TO LEAD-FREE OPTICAL BARIUM FLINT GLASSES HAVING REFRACTIVE INDICES ND OF BETWEEN 1.55 AND 1.66 AND ABBE NUMBERS VD OF BETWEEN 39 AND 52, WHICH HAVE THE FOLLOWING COMPOSITION (IN BY WEIGHT BASED ON OXIDE) :SIO2 40 - 60; B2O3 6. 5 -12 ; BAO 10-35; CAO 0-1; ZNO 0-2; TIO2 5-12; AL2O3 0.5-3.5; NA2O 3-7.5; K2O 3-8; WITH NA2O+K2O <15;THE GLASSES HAVE A POSITIVE ANOMALOUS TO NORMAL PARTIAL DISPERSION IN THE BLUE RANGE OF THE SPECTRUM.
MYPI9804007 1997-09-03 1998-09-02 Lead-free optical barium flint glass MY124577A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1997138428 DE19738428C1 (en) 1997-09-03 1997-09-03 New lead-free barium flint glass

Publications (1)

Publication Number Publication Date
MY124577A true MY124577A (en) 2006-06-30

Family

ID=7841026

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI9804007 MY124577A (en) 1997-09-03 1998-09-02 Lead-free optical barium flint glass

Country Status (6)

Country Link
JP (1) JP4213264B2 (en)
CN (1) CN1216822C (en)
DE (1) DE19738428C1 (en)
FR (1) FR2767814B1 (en)
GB (1) GB2328937B (en)
MY (1) MY124577A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4053810B2 (en) * 2002-04-18 2008-02-27 株式会社オハラ Optical glass with anomalous dispersion
CN104003615A (en) * 2013-02-25 2014-08-27 成都光明光电股份有限公司 Environmentally friendly optical glass, glass preform, optical element and optical instrument
CN105819683B (en) * 2016-03-04 2019-12-03 成都光明光电股份有限公司 Environmental protection optical glass and optical element
CN110228945A (en) * 2019-06-28 2019-09-13 成都光明光电股份有限公司 A kind of optical glass and its gas preform, element and instrument
CN111320382A (en) * 2020-03-06 2020-06-23 成都光明光电股份有限公司 Optical glass
CN111533443B (en) * 2020-05-27 2022-04-15 成都光明光电股份有限公司 Optical glass

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE23049E (en) * 1946-08-19 1948-11-23 Ophthalmic glass
US2523265A (en) * 1947-11-28 1950-09-26 Corning Glass Works Ophthalmic glass
US2523266A (en) * 1948-11-22 1950-09-26 Corning Glass Works Ophthalmic glass
GB812576A (en) * 1956-09-10 1959-04-29 Pittsburgh Plate Glass Co Improvements in or relating to glass composition
US3460954A (en) * 1964-05-21 1969-08-12 Bendix Corp Bao-nb2o5-sio2 glass compositions for use in fiber-optics
JPS5953223B2 (en) * 1979-10-23 1984-12-24 ホ−ヤ株式会社 glass for eyeglass lenses
JPS5673646A (en) * 1979-11-22 1981-06-18 Ohara Inc Optical glass
SU975617A1 (en) * 1981-03-16 1982-11-23 Предприятие П/Я Р-6681 Optical glass
DE3139212C2 (en) * 1981-10-02 1987-02-12 Schott Glaswerke, 6500 Mainz Use of a glass with refractive index nd ≥ 1.58, Abbe number ≥ 45 and density ≤ 2.75 g/cm3 as spectacle lens
GB2115403B (en) * 1982-02-20 1985-11-27 Zeiss Stiftung Optical and opthalmic glass
JPS60221338A (en) * 1984-04-12 1985-11-06 Ohara Inc Optical glass
JPS60264343A (en) * 1984-06-12 1985-12-27 Hoya Corp Face plate glass for image pick-up tube
JPH01133956A (en) * 1987-11-20 1989-05-26 Canon Inc Glass composition for distributed refractive index lens
JP2535407B2 (en) * 1989-05-31 1996-09-18 ホーヤ株式会社 Optical glass
JP2747938B2 (en) * 1990-08-03 1998-05-06 株式会社オハラ Glass for resin filling
JP2795326B2 (en) * 1991-04-05 1998-09-10 株式会社オハラ Optical glass
JP2565813B2 (en) * 1991-07-05 1996-12-18 株式会社オハラ Optical glass
JP2948013B2 (en) * 1992-03-05 1999-09-13 東洋機械金属株式会社 Hot water supply control method for die casting machine
JP2933453B2 (en) * 1992-09-25 1999-08-16 株式会社オハラ Optical glass

Also Published As

Publication number Publication date
CN1214324A (en) 1999-04-21
GB2328937B (en) 2001-05-30
GB2328937A (en) 1999-03-10
FR2767814B1 (en) 2000-06-23
JP4213264B2 (en) 2009-01-21
DE19738428C1 (en) 1998-08-20
JPH11171586A (en) 1999-06-29
GB9818277D0 (en) 1998-10-14
CN1216822C (en) 2005-08-31
FR2767814A1 (en) 1999-03-05

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